Powered by digital power amplifiers (bi-amplified), C-Mark LND32A features high efficiency, best sound, safe protectionincredible compatibility of electromagnetism. Suspension of the line array allows up to 9-step curvature adjustment, covering area thus wider. Tight, light and bright installation.Main Features: 1. Ease Focus software is provided for free with the line array 2. Plug & play, user-friendly, clear indication, easy manipulating for nonprofessionals. 3. LND32A is light weighted but very powerful driven by built-in digital power amplifier. 4.Bi-amplified digital power amplifier features best sound, high efficiency and high reliability. 5. Complete protection from short circuit, over surge current, over heat, over voltage, power limiting, over temperature frees users from worry of malfunction. 6. Suitable for many applications like commercial, company, entertainment, school and army etc.Specifications: High frequency power: 300W Low frequency power: 1000W Total Power: 1300W Frequency Response: 50Hz-18KHz Sensitivity: 128dB(1m/1w) Line input sensitivity: 0dB Cabinet: Plywood Net Weight: 45.5Kg EASY WIRING CLEAR INDICATION OF WORKING STATUS ON THE FACE OF EACH LND32A optional parts: 1) flight case (one case for two speakers) 2) rain-proof coverfor rear panel